Install Instructions

11
STORAGE CAPACITIES
TABLE 2
MODEL U. S. GALLONS LITERS
BTH 120 60 227
BTH 150 100 379
BTH 199 100 379
BTH 250 100 379
GAS LINE CONNECTION SIZE
TABLE 1
† MODEL SERIES NATURAL GAS PROPANE GAS
BTH 120 200/201 3/4 "NPT 3/4 "NPT
BTH 150 200/201 3/4 "NPT 3/4 "NPT
BTH 199 200/201 3/4 "NPT 3/4 "NPT
BTH 250 200/201 3/4 "NPT 3/4 "NPT
† Depending on the installed equivalent length, and/or the number of appliances connected, the
supply gas line size may have to be increased beyond the minimum required sizes - see Gas
Line Sizing on page 40.
8. Locate the water heater where an adequate supply of fresh
air for combustion and ventilation can be obtained. See Air
Requirements on page 17.
9. Locate the water heater where the vent and intake air piping,
when installed, will remain within the maximum equivalent
lengths allowed. See Venting Requirements on page 22.
10. Do not locate the water heater where noise (such as
the Combustion Blower) during normal operation will be
objectionable in adjacent areas.
11. Do not locate the water heater where the subsequent
installation of the vent (exhaust) or intake air terminations
would be objectionable due to noise at the termination(s).
This includes locations close to or across from windows and
doors. See Venting Installation on page 21.
Fire or Explosion Hazard
Read instruction manual before
installing, using or servicing
water heater.
Avoid all ignition sources if you smell gas.
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Use only the gas shown on the water heater rating label.
Keep ignition sources away from faucets after extended
periods of non-use.
Maintain required clearances to combustibles.
Do not expose water heater controls to excessive gas
pressure.
LOCATING THE WATER HEATER
Carefully choose a location for the new water heater. The
placement is a very important consideration for the safety of the
occupants in the building and for the most economical use of the
water heater.
Property Damage Hazard
All water heaters eventually leak.
•
Do not install without adequate drainage.
•
CAUTION
Whether replacing an existing water heater or installing the water
heater in a new location observe the following critical points:
1. The water heater must be located indoors.
2. The water heater must not be located in an area where it will
be subject to freezing temperatures.
3. Locate the water heater so it is protected and not subject to
physical damage by a moving vehicle.
4. Locate the water heater on a level surface.
5. Locate the water heater near a oor drain. The water heater should
be located in an area where leakage of the tank or connections
will not result in damage to the area adjacent to the water heater
or to lower oors of the structure. When such locations cannot be
avoided, it is recommended that a metal drain pan, adequately
drained, be installed under the water heater.
6. Locate the water heater close to the point of major hot water usage.
7. Locate the water heater close to a 120 VAC power supply.
See Power Supply on page 13 for requirements.
GAS PRESSURE REQUIREMENTS
TABLE 3
MODEL
MANIFOLD PRESSURE MINIMUM SUPPLY PRESSURE MAXIMUM SUPPLY PRESSURE
NATURAL GAS PROPANE GAS NATURAL GAS PROPANE GAS NATURAL GAS PROPANE GAS
BTH 120 0" W.C. (0 kPa) 0" W.C. (0 kPa) 4.4” W. C. (1.10 kPa) 8.5” W. C. (2.12 kPa) 14” W. C. (3.49 kPa) 14” W. C. (3.49 kPa)
BTH 150 0" W.C. (0 kPa) 0" W.C. (0 kPa) 4.4” W. C. (1.10 kPa) 8.5” W. C. (2.12 kPa) 14” W. C. (3.49 kPa) 14” W. C. (3.49 kPa)
BTH 199 0” W. C. (0 kPa) 0” W. C. (0 kPa) 4.4” W. C. (1.10 kPa) 8.5” W. C. (2.12 kPa) 14” W. C. (3.49 kPa 14” W. C. (3.49 kPa)
BTH 250 0” W. C. (0 kPa) 0” W. C. (0 kPa) 4.4” W. C. (1.10 kPa) 8.5” W. C. (2.12 kPa) 14” W. C. (3.49 kPa) 14” W. C. (3.49 kPa)
RECOVERY CAPACITIES
TABLE 4
U. S. GALLONS/HR & LITERS/HR AT TEMPERATURE RISE INDICATED
Model
Type of
Gas
Input
Thermal
Efciency%
°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F 100°F 110°F 120°F 130°F 140°F
Btu/hr kW °C 17°C 22°C 28°C 33°C 39°C 44°C 50°C 56°C 61°C 67°C 72°C 78°C
BTH 120
Natural
120,000 35 95
GPH 461 345 276 230 197 173 154 138 126 115 106 99
Propane LPH 1743 1308 1046 872 747 654 581 523 475 436 402 374
BTH 150
Natural
150,000 44 98
GPH 594 445 356 297 255 223 198 178 162 148 137 127
Propane LPH 2248 1686 1349 1124 963 843 749 674 613 562 519 482
BTH 199
Natural
199,900 58 97
GPH 783 588 470 392 336 294 261 235 214 196 181 168
Propane LPH 2965 2224 1779 1483 1271 1112 988 890 809 741 684 635
BTH 250
Natural
250,000 73 96
GPH 970 727 582 485 416 364 323 291 264 242 224 208
Propane LPH 3670 2753 2202 1835 1573 1376 1223 1101 1001 918 847 786